low memory consumption mode implementation, when loading a complete model

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/check/Checkable.java

@@ -42,11 +42,11 @@ public abstract class Checkable implements Serializable {
 
 	private EnumMap<CheckId, CheckResult> checkResults = new EnumMap<>(CheckId.class);
 	private boolean isValidated = false;
-	
+
 	protected void setValidated(boolean validated) {
 		isValidated = validated;
 	}
-	
+
 	public boolean isValidated() {
 		return isValidated;
 	}
@@ -75,6 +75,19 @@ public abstract class Checkable implements Serializable {
 	 */
 	public abstract GmlId getGmlId();
 
+	/**
+	 * This should be called before executing a check if low memory consumption
+	 * method has been enabled. This should create edges and additional meta
+	 * information necessary to perform checks.
+	 */
+	public abstract void prepareForChecking();
+
+	/**
+	 * This should be called after checking has been done. This should remove any
+	 * created meta information like edges to free up additional memory space
+	 */
+	public abstract void clearMetaInformation();
+
 	/**
 	 * This method checks if the object or any object contained within this
 	 * checkable has an error. It counts as an error if the result status if the

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/AbstractBuilding.java

@@ -257,4 +257,26 @@ public abstract class AbstractBuilding extends CityObject {
 	public List<BuildingInstallation> getBuildingInstallations() {
 		return buildingInstallations;
 	}
+	
+	@Override
+	public void prepareForChecking() {
+		super.prepareForChecking();
+		for (BuildingInstallation bi : buildingInstallations) {
+			bi.prepareForChecking();
+		}
+		for (BoundarySurface bs : boundarySurfaceList) {
+			bs.prepareForChecking();
+		}
+	}
+	
+	@Override
+	public void clearMetaInformation() {
+		super.clearMetaInformation();
+		for (BuildingInstallation bi : buildingInstallations) {
+			bi.clearMetaInformation();
+		}
+		for (BoundarySurface bs : boundarySurfaceList) {
+			bs.clearMetaInformation();
+		}
+	}
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/BoundarySurface.java

@@ -295,4 +295,20 @@ public class BoundarySurface extends CityObject {
 		opening.setPartOfSurface(this);
 	}
 
+	@Override
+	public void prepareForChecking() {
+		super.prepareForChecking();
+		for (Opening o : openings) {
+			o.prepareForChecking();
+		}
+	}
+
+	@Override
+	public void clearMetaInformation() {
+		super.clearMetaInformation();
+		for (Opening o : openings) {
+			o.clearMetaInformation();
+		}
+	}
+
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/BridgeObject.java

@@ -214,5 +214,21 @@ public class BridgeObject extends CityObject {
 	public String toString() {
 		return "BridgeObject [type=" + type + ", id=" + getGmlId() + "]";
 	}
+	
+	@Override
+	public void prepareForChecking() {
+		super.prepareForChecking();
+		for (BoundarySurface bs : boundarySurfaces) {
+			bs.prepareForChecking();
+		}
+	}
+	
+	@Override
+	public void clearMetaInformation() {
+		super.clearMetaInformation();
+		for (BoundarySurface bs : boundarySurfaces) {
+			bs.clearMetaInformation();
+		}
+	}
 
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/Building.java

@@ -134,4 +134,20 @@ public class Building extends AbstractBuilding {
 		}
 		setCityGmlBuilding(gmlB);
 	}
+	
+	@Override
+	public void clearMetaInformation() {
+		super.clearMetaInformation();
+		for (BuildingPart part : buildingParts) {
+			part.clearMetaInformation();
+		}
+	}
+	
+	@Override
+	public void prepareForChecking() {
+		super.prepareForChecking();
+		for (BuildingPart part : buildingParts) {
+			part.prepareForChecking();
+		}
+	}
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/BuildingInstallation.java

@@ -193,6 +193,22 @@ public class BuildingInstallation extends CityObject {
 		return boundarySurfaces;
 	}
 	
+	@Override
+	public void clearMetaInformation() {
+		super.clearMetaInformation();
+		for (BoundarySurface bs : boundarySurfaces) {
+			bs.clearMetaInformation();
+		}
+	}
+	
+	@Override
+	public void prepareForChecking() {
+		super.prepareForChecking();
+		for (BoundarySurface bs : boundarySurfaces) {
+			bs.prepareForChecking();
+		}
+	}
+	
 	
 
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/CityObject.java

@@ -172,4 +172,18 @@ public abstract class CityObject extends GmlElement {
 		}
 		return null;
 	}
+	
+	@Override
+	public void prepareForChecking() {
+		for (Geometry geom : geometryList) {
+			geom.prepareForChecking();
+		}
+	}
+	
+	@Override
+	public void clearMetaInformation() {
+		for (Geometry geom : geometryList) {
+			geom.clearMetaInformation();
+		}
+	}
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/ConcretePolygon.java

@@ -440,4 +440,14 @@ public class ConcretePolygon extends Polygon {
 	void setLinkedTo(LinkedPolygon linkedPolygon) {
 		linkedFromPolygon = linkedPolygon;
 	}
+	
+	@Override
+	public void prepareForChecking() {
+		parent.prepareForChecking();
+	}
+	
+	@Override
+	public void clearMetaInformation() {
+		parent.clearMetaInformation();
+	}
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/Geometry.java

@@ -405,4 +405,16 @@ public class Geometry extends GmlElement {
 	public Geometry copy() {
 		return (Geometry) super.copy();
 	}
+	
+	@Override
+	public void prepareForChecking() {
+		updateEdgesAndVertices();
+	}
+	
+	@Override
+	public void clearMetaInformation() {
+		edges = null;
+		vertices = null;
+		edgeMap = null;
+	}
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/LinearRing.java

@@ -246,5 +246,14 @@ public class LinearRing extends GmlElement {
 	public void addAllVertices(List<Vertex> extRing) {
 		vertices.addAll(extRing);
 	}
-
+	
+	@Override
+	public void prepareForChecking() {
+		parent.getParent().prepareForChecking();
+	}
+	
+	@Override
+	public void clearMetaInformation() {
+		parent.getParent().clearMetaInformation();
+	}
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/LinkedPolygon.java

@@ -246,5 +246,15 @@ public class LinkedPolygon extends Polygon {
 	public ConcretePolygon getOriginal() {
 		return poly;
 	}
+	
+	@Override
+	public void prepareForChecking() {
+		poly.prepareForChecking();
+	}
+	
+	@Override
+	public void clearMetaInformation() {
+		poly.clearMetaInformation();
+	}
 
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/TransportationObject.java

@@ -51,7 +51,7 @@ public class TransportationObject extends CityObject {
 	}
 
 	private AbstractTransportationObject ato;
-	private List<TransportationObject> composesOf = new ArrayList<>();
+	private List<TransportationObject> composesOf = new ArrayList<>(1);
 	private TransportationType type;
 
 	public TransportationObject(TransportationType type) {
@@ -253,5 +253,21 @@ public class TransportationObject extends CityObject {
 	public String toString() {
 		return "TransportationObject [id=" + getGmlId() + "]";
 	}
+	
+	@Override
+	public void prepareForChecking() {
+		super.prepareForChecking();
+		for (TransportationObject child : composesOf) {
+			child.prepareForChecking();
+		}
+	}
+	
+	@Override
+	public void clearMetaInformation() {
+		super.clearMetaInformation();
+		for (TransportationObject child : composesOf) {
+			child.clearMetaInformation();
+		}
+	}
 
 }

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/mapper/FeatureMapper.java

@@ -154,7 +154,6 @@ public class FeatureMapper extends FeatureWalker {
 	}
 
 	private void updateEdgesAndVertices(CityObject co) {
-
 		for (Geometry geom : co.getGeometries()) {
 			geom.updateVertices();
 			KDTree tree = new KDTree();
@@ -170,8 +169,16 @@ public class FeatureMapper extends FeatureWalker {
 					v.addNeighbor(neighbor);
 				}
 			}
-
-			geom.updateEdges();
+			
+			if (config.useLowMemoryConsumption()) {
+				// do not create edges and vertices
+				// vertices were already created because they were needed for the kd tree
+				// remove them again
+				geom.clearMetaInformation();
+			} else {
+				// create edges
+				geom.updateEdges();
+			}
 		}
 	}
 

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/parser/ParserConfiguration.java

@@ -46,15 +46,21 @@ public class ParserConfiguration implements Serializable {
 	private String targetTransformString;
 	private String originalTransformString;
 	private boolean hasTransformation = false;
+	private boolean useLowMemoryConsumption = false;
 
 	private transient double fromMetres = 1.0;
 
 	public ParserConfiguration(int numberOfRoundingPlaces, boolean validate) {
+		this(numberOfRoundingPlaces, validate, false);
+	}
+	
+	public ParserConfiguration(int numberOfRoundingPlaces, boolean validate, boolean lowMemory) {
 		if (numberOfRoundingPlaces < 0) {
 			throw new IllegalArgumentException("Number of rounding places must be a positive value");
 		}
 		roundingPlaces = numberOfRoundingPlaces;
 		this.validate = validate;
+		useLowMemoryConsumption = lowMemory;
 	}
 
 	public boolean getValidate() {
@@ -107,5 +113,9 @@ public class ParserConfiguration implements Serializable {
 	public double getFromMetres() {
 		return fromMetres;
 	}
+	
+	public boolean useLowMemoryConsumption() {
+		return useLowMemoryConsumption;
+	}
 
 }

CityDoctorParent/CityDoctorModel/src/main/resources/CityDoctorLocalization.properties

@@ -110,4 +110,5 @@ CityGmlParser.noEPSG=Could not read EPSG code, assuming metric system
 OpenFileDialog.loadFailed=Failed to load CityGML File
 MainWindow.memoryLabel=Memory:
 CheckDialog.checksReenabledAlert=Some checks have been reenabled so that other wanted checks can be executed\nSee the log for more information.
-MainWindow.availableLabel=Available:
\ No newline at end of file
+MainWindow.availableLabel=Available:
+OpenFileDialog.lowMemoryLabel=Low Memory Consumption Mode
\ No newline at end of file

CityDoctorParent/CityDoctorModel/src/main/resources/CityDoctorLocalization_de.properties

@@ -108,4 +108,5 @@ CityGmlParser.noEPSG=Konnte EPSG Code nicht lesen, nehme metrisches System an
 OpenFileDialog.loadFailed=Konnte CityGML Datei nicht laden
 MainWindow.memoryLabel=Speicher:
 CheckDialog.checksReenabledAlert=Manche Pr\u00fcfungen wurden reaktiviert damit andere gewollte Pr\u00fcfungen durchgef\u00fchrt werden k\u00f6nnen\nMehr Details sind im Log geschrieben
-MainWindow.availableLabel=Verf\u00fcgbar:
\ No newline at end of file
+MainWindow.availableLabel=Verf\u00fcgbar:
+OpenFileDialog.lowMemoryLabel=Reduzierter Speicherverbrauchsmodus
\ No newline at end of file

CityDoctorParent/CityDoctorValidation/src/main/java/de/hft/stuttgart/citydoctor2/check/Checker.java

@@ -362,8 +362,17 @@ public class Checker {
 		// stupid lamda with final variable restrictions
 		int[] currentFeature = new int[1];
 		features.forEach(co -> {
+			if (config.getParserConfiguration().useLowMemoryConsumption()) {
+				// no edges have been created yet, create them
+				co.prepareForChecking();
+			}
 			// check every feature
 			executeChecksForCityObject(co);
+			
+			if (config.getParserConfiguration().useLowMemoryConsumption()) {
+				// low memory consumption, remove edges again
+				co.clearMetaInformation();
+			}
 			if (l != null) {
 				currentFeature[0]++;
 				l.updateProgress(currentFeature[0] / featureSum);